[PATCH] USB: ET61X[12]51 driver updates
USB: ET61X[12]51 driver updates Changes: + new, - removed, * cleanup, @ bugfix @ Fix stream_interrupt() @ Fix vidioc_enum_input() and split vidioc_gs_input() @ Need usb_get|put_dev() when disconnecting, if the device is open * Use wait_event_interruptible_timeout() instead of wait_event_interruptible() when waiting for video frames * replace wake_up_interruptible(&wait_stream) with wake_up(&wait_stream) * Cleanups and updates in the documentation * Use mutexes instead of semaphores + Use per-device sensor structures + Add support for PAS202BCA image sensors + Add frame_timeout module parameter Signed-off-by: Luca Risolia <luca.risolia@studio.unibo.it> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Luca Risolia
Greg Kroah-Hartman
Родитель
2ffab02fea
Коммит
ccad7789d5
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@ -176,6 +176,14 @@ Description: Force the application to unmap previously mapped buffer memory
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1 = force memory unmapping (save memory)
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Default: 0
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-------------------------------------------------------------------------------
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Name: frame_timeout
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Type: uint array (min = 0, max = 64)
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Syntax: <n[,...]>
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Description: Timeout for a video frame in seconds. This parameter is
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specific for each detected camera. This parameter can be
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changed at runtime thanks to the /sys filesystem interface.
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Default: 2
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-------------------------------------------------------------------------------
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Name: debug
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Type: ushort
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Syntax: <n>
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@ -266,7 +274,7 @@ the V4L2 interface.
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10. Notes for V4L2 application developers
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========================================
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=========================================
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This driver follows the V4L2 API specifications. In particular, it enforces two
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rules:
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@ -33,7 +33,9 @@
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#include <linux/types.h>
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#include <linux/param.h>
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#include <linux/rwsem.h>
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#include <asm/semaphore.h>
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#include <linux/mutex.h>
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#include <linux/stddef.h>
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#include <linux/string.h>
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#include "et61x251_sensor.h"
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@ -51,6 +53,7 @@
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#define ET61X251_ALTERNATE_SETTING 13
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#define ET61X251_URB_TIMEOUT msecs_to_jiffies(2 * ET61X251_ISO_PACKETS)
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#define ET61X251_CTRL_TIMEOUT 100
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#define ET61X251_FRAME_TIMEOUT 2
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/*****************************************************************************/
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@ -127,15 +130,16 @@ struct et61x251_sysfs_attr {
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struct et61x251_module_param {
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u8 force_munmap;
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u16 frame_timeout;
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};
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static DECLARE_MUTEX(et61x251_sysfs_lock);
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static DEFINE_MUTEX(et61x251_sysfs_lock);
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static DECLARE_RWSEM(et61x251_disconnect);
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struct et61x251_device {
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struct video_device* v4ldev;
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struct et61x251_sensor* sensor;
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struct et61x251_sensor sensor;
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struct usb_device* usbdev;
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struct urb* urb[ET61X251_URBS];
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@ -157,19 +161,28 @@ struct et61x251_device {
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enum et61x251_dev_state state;
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u8 users;
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struct semaphore dev_sem, fileop_sem;
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struct mutex dev_mutex, fileop_mutex;
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spinlock_t queue_lock;
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wait_queue_head_t open, wait_frame, wait_stream;
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};
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/*****************************************************************************/
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struct et61x251_device*
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et61x251_match_id(struct et61x251_device* cam, const struct usb_device_id *id)
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{
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if (usb_match_id(usb_ifnum_to_if(cam->usbdev, 0), id))
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return cam;
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return NULL;
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}
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void
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et61x251_attach_sensor(struct et61x251_device* cam,
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struct et61x251_sensor* sensor)
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{
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cam->sensor = sensor;
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cam->sensor->usbdev = cam->usbdev;
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memcpy(&cam->sensor, sensor, sizeof(struct et61x251_sensor));
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}
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/*****************************************************************************/
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@ -212,7 +225,8 @@ do { \
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#undef PDBG
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#define PDBG(fmt, args...) \
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dev_info(&cam->dev, "[%s:%d] " fmt "\n", __FUNCTION__, __LINE__ , ## args)
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dev_info(&cam->usbdev->dev, "[%s:%d] " fmt "\n", \
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__FUNCTION__, __LINE__ , ## args)
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#undef PDBGG
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#define PDBGG(fmt, args...) do {;} while(0) /* placeholder */
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@ -25,11 +25,9 @@
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#include <linux/moduleparam.h>
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#include <linux/errno.h>
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#include <linux/slab.h>
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#include <linux/string.h>
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#include <linux/device.h>
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#include <linux/fs.h>
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#include <linux/delay.h>
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#include <linux/stddef.h>
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#include <linux/compiler.h>
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#include <linux/ioctl.h>
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#include <linux/poll.h>
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@ -50,8 +48,8 @@
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#define ET61X251_MODULE_AUTHOR "(C) 2006 Luca Risolia"
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#define ET61X251_AUTHOR_EMAIL "<luca.risolia@studio.unibo.it>"
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#define ET61X251_MODULE_LICENSE "GPL"
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#define ET61X251_MODULE_VERSION "1:1.01"
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#define ET61X251_MODULE_VERSION_CODE KERNEL_VERSION(1, 0, 1)
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#define ET61X251_MODULE_VERSION "1:1.02"
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#define ET61X251_MODULE_VERSION_CODE KERNEL_VERSION(1, 0, 2)
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/*****************************************************************************/
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@ -90,6 +88,16 @@ MODULE_PARM_DESC(force_munmap,
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"\nDefault value is "__MODULE_STRING(SN9C102_FORCE_MUNMAP)"."
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"\n");
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static unsigned int frame_timeout[] = {[0 ... ET61X251_MAX_DEVICES-1] =
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ET61X251_FRAME_TIMEOUT};
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module_param_array(frame_timeout, uint, NULL, 0644);
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MODULE_PARM_DESC(frame_timeout,
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"\n<n[,...]> Timeout for a video frame in seconds."
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"\nThis parameter is specific for each detected camera."
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"\nDefault value is "
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__MODULE_STRING(ET61X251_FRAME_TIMEOUT)"."
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"\n");
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#ifdef ET61X251_DEBUG
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static unsigned short debug = ET61X251_DEBUG_LEVEL;
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module_param(debug, ushort, 0644);
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@ -111,8 +119,8 @@ static u32
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et61x251_request_buffers(struct et61x251_device* cam, u32 count,
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enum et61x251_io_method io)
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{
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struct v4l2_pix_format* p = &(cam->sensor->pix_format);
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struct v4l2_rect* r = &(cam->sensor->cropcap.bounds);
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struct v4l2_pix_format* p = &(cam->sensor.pix_format);
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struct v4l2_rect* r = &(cam->sensor.cropcap.bounds);
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const size_t imagesize = cam->module_param.force_munmap ||
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io == IO_READ ?
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(p->width * p->height * p->priv) / 8 :
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@ -268,8 +276,8 @@ et61x251_i2c_try_read(struct et61x251_device* cam,
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int err = 0, res;
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data[0] = address;
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data[1] = cam->sensor->i2c_slave_id;
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data[2] = cam->sensor->rsta | 0x10;
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data[1] = cam->sensor.i2c_slave_id;
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data[2] = cam->sensor.rsta | 0x10;
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data[3] = !(et61x251_read_reg(cam, 0x8b) & 0x02);
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res = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x00, 0x41,
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0, 0x88, data, 4, ET61X251_CTRL_TIMEOUT);
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@ -301,8 +309,8 @@ et61x251_i2c_try_write(struct et61x251_device* cam,
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int err = 0, res;
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data[0] = address;
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data[1] = cam->sensor->i2c_slave_id;
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data[2] = cam->sensor->rsta | 0x12;
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data[1] = cam->sensor.i2c_slave_id;
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data[2] = cam->sensor.rsta | 0x12;
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res = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x00, 0x41,
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0, 0x88, data, 3, ET61X251_CTRL_TIMEOUT);
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if (res < 0)
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@ -334,9 +342,6 @@ et61x251_i2c_raw_write(struct et61x251_device* cam, u8 n, u8 data1, u8 data2,
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u8* data = cam->control_buffer;
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int err = 0, res;
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if (!cam->sensor)
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return -1;
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data[0] = data2;
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data[1] = data3;
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data[2] = data4;
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@ -350,8 +355,8 @@ et61x251_i2c_raw_write(struct et61x251_device* cam, u8 n, u8 data1, u8 data2,
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err += res;
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data[0] = address;
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data[1] = cam->sensor->i2c_slave_id;
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data[2] = cam->sensor->rsta | 0x02 | (n << 4);
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data[1] = cam->sensor.i2c_slave_id;
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data[2] = cam->sensor.rsta | 0x02 | (n << 4);
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res = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x00, 0x41,
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0, 0x88, data, 3, ET61X251_CTRL_TIMEOUT);
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if (res < 0)
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@ -364,11 +369,11 @@ et61x251_i2c_raw_write(struct et61x251_device* cam, u8 n, u8 data1, u8 data2,
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if (res < 0)
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err += res;
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err += et61x251_i2c_wait(cam, cam->sensor);
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err += et61x251_i2c_wait(cam, &cam->sensor);
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if (err)
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DBG(3, "I2C raw write failed for %s image sensor",
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cam->sensor->name);
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cam->sensor.name);
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PDBGG("I2C raw write: %u bytes, address = 0x%02X, data1 = 0x%02X, "
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"data2 = 0x%02X, data3 = 0x%02X, data4 = 0x%02X, data5 = 0x%02X,"
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@ -382,19 +387,13 @@ et61x251_i2c_raw_write(struct et61x251_device* cam, u8 n, u8 data1, u8 data2,
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int et61x251_i2c_read(struct et61x251_device* cam, u8 address)
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{
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if (!cam->sensor)
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return -1;
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return et61x251_i2c_try_read(cam, cam->sensor, address);
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return et61x251_i2c_try_read(cam, &cam->sensor, address);
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}
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int et61x251_i2c_write(struct et61x251_device* cam, u8 address, u8 value)
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{
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if (!cam->sensor)
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return -1;
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return et61x251_i2c_try_write(cam, cam->sensor, address, value);
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return et61x251_i2c_try_write(cam, &cam->sensor, address, value);
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}
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/*****************************************************************************/
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@ -417,7 +416,7 @@ static void et61x251_urb_complete(struct urb *urb, struct pt_regs* regs)
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if ((*f))
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(*f)->state = F_QUEUED;
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DBG(3, "Stream interrupted");
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wake_up_interruptible(&cam->wait_stream);
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wake_up(&cam->wait_stream);
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}
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if (cam->state & DEV_DISCONNECTED)
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@ -435,9 +434,9 @@ static void et61x251_urb_complete(struct urb *urb, struct pt_regs* regs)
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(*f) = list_entry(cam->inqueue.next, struct et61x251_frame_t,
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frame);
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imagesize = (cam->sensor->pix_format.width *
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cam->sensor->pix_format.height *
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cam->sensor->pix_format.priv) / 8;
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imagesize = (cam->sensor.pix_format.width *
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cam->sensor.pix_format.height *
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cam->sensor.pix_format.priv) / 8;
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for (i = 0; i < urb->number_of_packets; i++) {
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unsigned int len, status;
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@ -476,7 +475,7 @@ start_of_frame:
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if ((*f)->state == F_GRABBING) {
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if (sof && (*f)->buf.bytesused) {
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if (cam->sensor->pix_format.pixelformat ==
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if (cam->sensor.pix_format.pixelformat ==
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V4L2_PIX_FMT_ET61X251)
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goto end_of_frame;
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else {
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@ -521,7 +520,7 @@ end_of_frame:
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goto resubmit_urb;
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if (sof &&
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cam->sensor->pix_format.pixelformat ==
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cam->sensor.pix_format.pixelformat ==
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V4L2_PIX_FMT_ET61X251)
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goto start_of_frame;
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}
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@ -650,21 +649,21 @@ static int et61x251_stop_transfer(struct et61x251_device* cam)
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static int et61x251_stream_interrupt(struct et61x251_device* cam)
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{
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int err = 0;
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long timeout;
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cam->stream = STREAM_INTERRUPT;
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err = wait_event_timeout(cam->wait_stream,
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timeout = wait_event_timeout(cam->wait_stream,
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(cam->stream == STREAM_OFF) ||
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(cam->state & DEV_DISCONNECTED),
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ET61X251_URB_TIMEOUT);
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if (cam->state & DEV_DISCONNECTED)
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return -ENODEV;
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else if (err) {
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else if (cam->stream != STREAM_OFF) {
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cam->state |= DEV_MISCONFIGURED;
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DBG(1, "URB timeout reached. The camera is misconfigured. To "
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"use it, close and open /dev/video%d again.",
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cam->v4ldev->minor);
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return err;
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return -EIO;
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}
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return 0;
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@ -709,18 +708,18 @@ static ssize_t et61x251_show_reg(struct class_device* cd, char* buf)
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struct et61x251_device* cam;
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ssize_t count;
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if (down_interruptible(&et61x251_sysfs_lock))
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if (mutex_lock_interruptible(&et61x251_sysfs_lock))
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return -ERESTARTSYS;
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cam = video_get_drvdata(to_video_device(cd));
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if (!cam) {
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up(&et61x251_sysfs_lock);
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mutex_unlock(&et61x251_sysfs_lock);
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return -ENODEV;
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}
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count = sprintf(buf, "%u\n", cam->sysfs.reg);
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up(&et61x251_sysfs_lock);
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mutex_unlock(&et61x251_sysfs_lock);
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return count;
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}
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@ -733,18 +732,18 @@ et61x251_store_reg(struct class_device* cd, const char* buf, size_t len)
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u8 index;
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ssize_t count;
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if (down_interruptible(&et61x251_sysfs_lock))
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if (mutex_lock_interruptible(&et61x251_sysfs_lock))
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return -ERESTARTSYS;
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cam = video_get_drvdata(to_video_device(cd));
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if (!cam) {
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up(&et61x251_sysfs_lock);
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mutex_unlock(&et61x251_sysfs_lock);
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return -ENODEV;
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}
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index = et61x251_strtou8(buf, len, &count);
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if (index > 0x8e || !count) {
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up(&et61x251_sysfs_lock);
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mutex_unlock(&et61x251_sysfs_lock);
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return -EINVAL;
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}
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@ -753,7 +752,7 @@ et61x251_store_reg(struct class_device* cd, const char* buf, size_t len)
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DBG(2, "Moved ET61X[12]51 register index to 0x%02X", cam->sysfs.reg);
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DBG(3, "Written bytes: %zd", count);
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up(&et61x251_sysfs_lock);
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mutex_unlock(&et61x251_sysfs_lock);
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return count;
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}
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@ -765,17 +764,17 @@ static ssize_t et61x251_show_val(struct class_device* cd, char* buf)
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ssize_t count;
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int val;
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if (down_interruptible(&et61x251_sysfs_lock))
|
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if (mutex_lock_interruptible(&et61x251_sysfs_lock))
|
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return -ERESTARTSYS;
|
||||
|
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cam = video_get_drvdata(to_video_device(cd));
|
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if (!cam) {
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up(&et61x251_sysfs_lock);
|
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mutex_unlock(&et61x251_sysfs_lock);
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return -ENODEV;
|
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}
|
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|
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if ((val = et61x251_read_reg(cam, cam->sysfs.reg)) < 0) {
|
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up(&et61x251_sysfs_lock);
|
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mutex_unlock(&et61x251_sysfs_lock);
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return -EIO;
|
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}
|
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|
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|
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@ -783,7 +782,7 @@ static ssize_t et61x251_show_val(struct class_device* cd, char* buf)
|
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|
||||
DBG(3, "Read bytes: %zd", count);
|
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|
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up(&et61x251_sysfs_lock);
|
||||
mutex_unlock(&et61x251_sysfs_lock);
|
||||
|
||||
return count;
|
||||
}
|
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|
|
@ -797,24 +796,24 @@ et61x251_store_val(struct class_device* cd, const char* buf, size_t len)
|
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ssize_t count;
|
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int err;
|
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|
||||
if (down_interruptible(&et61x251_sysfs_lock))
|
||||
if (mutex_lock_interruptible(&et61x251_sysfs_lock))
|
||||
return -ERESTARTSYS;
|
||||
|
||||
cam = video_get_drvdata(to_video_device(cd));
|
||||
if (!cam) {
|
||||
up(&et61x251_sysfs_lock);
|
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mutex_unlock(&et61x251_sysfs_lock);
|
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return -ENODEV;
|
||||
}
|
||||
|
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value = et61x251_strtou8(buf, len, &count);
|
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if (!count) {
|
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up(&et61x251_sysfs_lock);
|
||||
mutex_unlock(&et61x251_sysfs_lock);
|
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return -EINVAL;
|
||||
}
|
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|
||||
err = et61x251_write_reg(cam, value, cam->sysfs.reg);
|
||||
if (err) {
|
||||
up(&et61x251_sysfs_lock);
|
||||
mutex_unlock(&et61x251_sysfs_lock);
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
|
|
@ -822,7 +821,7 @@ et61x251_store_val(struct class_device* cd, const char* buf, size_t len)
|
|||
cam->sysfs.reg, value);
|
||||
DBG(3, "Written bytes: %zd", count);
|
||||
|
||||
up(&et61x251_sysfs_lock);
|
||||
mutex_unlock(&et61x251_sysfs_lock);
|
||||
|
||||
return count;
|
||||
}
|
||||
|
|
@ -833,12 +832,12 @@ static ssize_t et61x251_show_i2c_reg(struct class_device* cd, char* buf)
|
|||
struct et61x251_device* cam;
|
||||
ssize_t count;
|
||||
|
||||
if (down_interruptible(&et61x251_sysfs_lock))
|
||||
if (mutex_lock_interruptible(&et61x251_sysfs_lock))
|
||||
return -ERESTARTSYS;
|
||||
|
||||
cam = video_get_drvdata(to_video_device(cd));
|
||||
if (!cam) {
|
||||
up(&et61x251_sysfs_lock);
|
||||
mutex_unlock(&et61x251_sysfs_lock);
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
|
|
@ -846,7 +845,7 @@ static ssize_t et61x251_show_i2c_reg(struct class_device* cd, char* buf)
|
|||
|
||||
DBG(3, "Read bytes: %zd", count);
|
||||
|
||||
up(&et61x251_sysfs_lock);
|
||||
mutex_unlock(&et61x251_sysfs_lock);
|
||||
|
||||
return count;
|
||||
}
|
||||
|
|
@ -859,18 +858,18 @@ et61x251_store_i2c_reg(struct class_device* cd, const char* buf, size_t len)
|
|||
u8 index;
|
||||
ssize_t count;
|
||||
|
||||
if (down_interruptible(&et61x251_sysfs_lock))
|
||||
if (mutex_lock_interruptible(&et61x251_sysfs_lock))
|
||||
return -ERESTARTSYS;
|
||||
|
||||
cam = video_get_drvdata(to_video_device(cd));
|
||||
if (!cam) {
|
||||
up(&et61x251_sysfs_lock);
|
||||
mutex_unlock(&et61x251_sysfs_lock);
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
index = et61x251_strtou8(buf, len, &count);
|
||||
if (!count) {
|
||||
up(&et61x251_sysfs_lock);
|
||||
mutex_unlock(&et61x251_sysfs_lock);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
|
|
@ -879,7 +878,7 @@ et61x251_store_i2c_reg(struct class_device* cd, const char* buf, size_t len)
|
|||
DBG(2, "Moved sensor register index to 0x%02X", cam->sysfs.i2c_reg);
|
||||
DBG(3, "Written bytes: %zd", count);
|
||||
|
||||
up(&et61x251_sysfs_lock);
|
||||
mutex_unlock(&et61x251_sysfs_lock);
|
||||
|
||||
return count;
|
||||
}
|
||||
|
|
@ -891,22 +890,22 @@ static ssize_t et61x251_show_i2c_val(struct class_device* cd, char* buf)
|
|||
ssize_t count;
|
||||
int val;
|
||||
|
||||
if (down_interruptible(&et61x251_sysfs_lock))
|
||||
if (mutex_lock_interruptible(&et61x251_sysfs_lock))
|
||||
return -ERESTARTSYS;
|
||||
|
||||
cam = video_get_drvdata(to_video_device(cd));
|
||||
if (!cam) {
|
||||
up(&et61x251_sysfs_lock);
|
||||
mutex_unlock(&et61x251_sysfs_lock);
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
if (!(cam->sensor->sysfs_ops & ET61X251_I2C_READ)) {
|
||||
up(&et61x251_sysfs_lock);
|
||||
if (!(cam->sensor.sysfs_ops & ET61X251_I2C_READ)) {
|
||||
mutex_unlock(&et61x251_sysfs_lock);
|
||||
return -ENOSYS;
|
||||
}
|
||||
|
||||
if ((val = et61x251_i2c_read(cam, cam->sysfs.i2c_reg)) < 0) {
|
||||
up(&et61x251_sysfs_lock);
|
||||
mutex_unlock(&et61x251_sysfs_lock);
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
|
|
@ -914,7 +913,7 @@ static ssize_t et61x251_show_i2c_val(struct class_device* cd, char* buf)
|
|||
|
||||
DBG(3, "Read bytes: %zd", count);
|
||||
|
||||
up(&et61x251_sysfs_lock);
|
||||
mutex_unlock(&et61x251_sysfs_lock);
|
||||
|
||||
return count;
|
||||
}
|
||||
|
|
@ -928,29 +927,29 @@ et61x251_store_i2c_val(struct class_device* cd, const char* buf, size_t len)
|
|||
ssize_t count;
|
||||
int err;
|
||||
|
||||
if (down_interruptible(&et61x251_sysfs_lock))
|
||||
if (mutex_lock_interruptible(&et61x251_sysfs_lock))
|
||||
return -ERESTARTSYS;
|
||||
|
||||
cam = video_get_drvdata(to_video_device(cd));
|
||||
if (!cam) {
|
||||
up(&et61x251_sysfs_lock);
|
||||
mutex_unlock(&et61x251_sysfs_lock);
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
if (!(cam->sensor->sysfs_ops & ET61X251_I2C_READ)) {
|
||||
up(&et61x251_sysfs_lock);
|
||||
if (!(cam->sensor.sysfs_ops & ET61X251_I2C_READ)) {
|
||||
mutex_unlock(&et61x251_sysfs_lock);
|
||||
return -ENOSYS;
|
||||
}
|
||||
|
||||
value = et61x251_strtou8(buf, len, &count);
|
||||
if (!count) {
|
||||
up(&et61x251_sysfs_lock);
|
||||
mutex_unlock(&et61x251_sysfs_lock);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
err = et61x251_i2c_write(cam, cam->sysfs.i2c_reg, value);
|
||||
if (err) {
|
||||
up(&et61x251_sysfs_lock);
|
||||
mutex_unlock(&et61x251_sysfs_lock);
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
|
|
@ -958,7 +957,7 @@ et61x251_store_i2c_val(struct class_device* cd, const char* buf, size_t len)
|
|||
cam->sysfs.i2c_reg, value);
|
||||
DBG(3, "Written bytes: %zd", count);
|
||||
|
||||
up(&et61x251_sysfs_lock);
|
||||
mutex_unlock(&et61x251_sysfs_lock);
|
||||
|
||||
return count;
|
||||
}
|
||||
|
|
@ -980,7 +979,7 @@ static void et61x251_create_sysfs(struct et61x251_device* cam)
|
|||
|
||||
video_device_create_file(v4ldev, &class_device_attr_reg);
|
||||
video_device_create_file(v4ldev, &class_device_attr_val);
|
||||
if (cam->sensor && cam->sensor->sysfs_ops) {
|
||||
if (cam->sensor.sysfs_ops) {
|
||||
video_device_create_file(v4ldev, &class_device_attr_i2c_reg);
|
||||
video_device_create_file(v4ldev, &class_device_attr_i2c_val);
|
||||
}
|
||||
|
|
@ -1048,7 +1047,7 @@ static int et61x251_set_scale(struct et61x251_device* cam, u8 scale)
|
|||
static int
|
||||
et61x251_set_crop(struct et61x251_device* cam, struct v4l2_rect* rect)
|
||||
{
|
||||
struct et61x251_sensor* s = cam->sensor;
|
||||
struct et61x251_sensor* s = &cam->sensor;
|
||||
u16 fmw_sx = (u16)(rect->left - s->cropcap.bounds.left +
|
||||
s->active_pixel.left),
|
||||
fmw_sy = (u16)(rect->top - s->cropcap.bounds.top +
|
||||
|
|
@ -1076,7 +1075,7 @@ et61x251_set_crop(struct et61x251_device* cam, struct v4l2_rect* rect)
|
|||
|
||||
static int et61x251_init(struct et61x251_device* cam)
|
||||
{
|
||||
struct et61x251_sensor* s = cam->sensor;
|
||||
struct et61x251_sensor* s = &cam->sensor;
|
||||
struct v4l2_control ctrl;
|
||||
struct v4l2_queryctrl *qctrl;
|
||||
struct v4l2_rect* rect;
|
||||
|
|
@ -1143,7 +1142,7 @@ static int et61x251_init(struct et61x251_device* cam)
|
|||
}
|
||||
|
||||
if (!(cam->state & DEV_INITIALIZED)) {
|
||||
init_MUTEX(&cam->fileop_sem);
|
||||
mutex_init(&cam->fileop_mutex);
|
||||
spin_lock_init(&cam->queue_lock);
|
||||
init_waitqueue_head(&cam->wait_frame);
|
||||
init_waitqueue_head(&cam->wait_stream);
|
||||
|
|
@ -1161,13 +1160,15 @@ static int et61x251_init(struct et61x251_device* cam)
|
|||
|
||||
static void et61x251_release_resources(struct et61x251_device* cam)
|
||||
{
|
||||
down(&et61x251_sysfs_lock);
|
||||
mutex_lock(&et61x251_sysfs_lock);
|
||||
|
||||
DBG(2, "V4L2 device /dev/video%d deregistered", cam->v4ldev->minor);
|
||||
video_set_drvdata(cam->v4ldev, NULL);
|
||||
video_unregister_device(cam->v4ldev);
|
||||
|
||||
up(&et61x251_sysfs_lock);
|
||||
usb_put_dev(cam->usbdev);
|
||||
|
||||
mutex_unlock(&et61x251_sysfs_lock);
|
||||
|
||||
kfree(cam->control_buffer);
|
||||
}
|
||||
|
|
@ -1188,7 +1189,7 @@ static int et61x251_open(struct inode* inode, struct file* filp)
|
|||
|
||||
cam = video_get_drvdata(video_devdata(filp));
|
||||
|
||||
if (down_interruptible(&cam->dev_sem)) {
|
||||
if (mutex_lock_interruptible(&cam->dev_mutex)) {
|
||||
up_read(&et61x251_disconnect);
|
||||
return -ERESTARTSYS;
|
||||
}
|
||||
|
|
@ -1200,7 +1201,7 @@ static int et61x251_open(struct inode* inode, struct file* filp)
|
|||
err = -EWOULDBLOCK;
|
||||
goto out;
|
||||
}
|
||||
up(&cam->dev_sem);
|
||||
mutex_unlock(&cam->dev_mutex);
|
||||
err = wait_event_interruptible_exclusive(cam->open,
|
||||
cam->state & DEV_DISCONNECTED
|
||||
|| !cam->users);
|
||||
|
|
@ -1212,7 +1213,7 @@ static int et61x251_open(struct inode* inode, struct file* filp)
|
|||
up_read(&et61x251_disconnect);
|
||||
return -ENODEV;
|
||||
}
|
||||
down(&cam->dev_sem);
|
||||
mutex_lock(&cam->dev_mutex);
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -1240,7 +1241,7 @@ static int et61x251_open(struct inode* inode, struct file* filp)
|
|||
DBG(3, "Video device /dev/video%d is open", cam->v4ldev->minor);
|
||||
|
||||
out:
|
||||
up(&cam->dev_sem);
|
||||
mutex_unlock(&cam->dev_mutex);
|
||||
up_read(&et61x251_disconnect);
|
||||
return err;
|
||||
}
|
||||
|
|
@ -1250,7 +1251,7 @@ static int et61x251_release(struct inode* inode, struct file* filp)
|
|||
{
|
||||
struct et61x251_device* cam = video_get_drvdata(video_devdata(filp));
|
||||
|
||||
down(&cam->dev_sem); /* prevent disconnect() to be called */
|
||||
mutex_lock(&cam->dev_mutex); /* prevent disconnect() to be called */
|
||||
|
||||
et61x251_stop_transfer(cam);
|
||||
|
||||
|
|
@ -1258,7 +1259,7 @@ static int et61x251_release(struct inode* inode, struct file* filp)
|
|||
|
||||
if (cam->state & DEV_DISCONNECTED) {
|
||||
et61x251_release_resources(cam);
|
||||
up(&cam->dev_sem);
|
||||
mutex_unlock(&cam->dev_mutex);
|
||||
kfree(cam);
|
||||
return 0;
|
||||
}
|
||||
|
|
@ -1268,7 +1269,7 @@ static int et61x251_release(struct inode* inode, struct file* filp)
|
|||
|
||||
DBG(3, "Video device /dev/video%d closed", cam->v4ldev->minor);
|
||||
|
||||
up(&cam->dev_sem);
|
||||
mutex_unlock(&cam->dev_mutex);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
|
@ -1281,28 +1282,29 @@ et61x251_read(struct file* filp, char __user * buf,
|
|||
struct et61x251_device* cam = video_get_drvdata(video_devdata(filp));
|
||||
struct et61x251_frame_t* f, * i;
|
||||
unsigned long lock_flags;
|
||||
long timeout;
|
||||
int err = 0;
|
||||
|
||||
if (down_interruptible(&cam->fileop_sem))
|
||||
if (mutex_lock_interruptible(&cam->fileop_mutex))
|
||||
return -ERESTARTSYS;
|
||||
|
||||
if (cam->state & DEV_DISCONNECTED) {
|
||||
DBG(1, "Device not present");
|
||||
up(&cam->fileop_sem);
|
||||
mutex_unlock(&cam->fileop_mutex);
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
if (cam->state & DEV_MISCONFIGURED) {
|
||||
DBG(1, "The camera is misconfigured. Close and open it "
|
||||
"again.");
|
||||
up(&cam->fileop_sem);
|
||||
mutex_unlock(&cam->fileop_mutex);
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
if (cam->io == IO_MMAP) {
|
||||
DBG(3, "Close and open the device again to choose the read "
|
||||
"method");
|
||||
up(&cam->fileop_sem);
|
||||
mutex_unlock(&cam->fileop_mutex);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
|
|
@ -1310,7 +1312,7 @@ et61x251_read(struct file* filp, char __user * buf,
|
|||
if (!et61x251_request_buffers(cam, cam->nreadbuffers,
|
||||
IO_READ)) {
|
||||
DBG(1, "read() failed, not enough memory");
|
||||
up(&cam->fileop_sem);
|
||||
mutex_unlock(&cam->fileop_mutex);
|
||||
return -ENOMEM;
|
||||
}
|
||||
cam->io = IO_READ;
|
||||
|
|
@ -1324,30 +1326,32 @@ et61x251_read(struct file* filp, char __user * buf,
|
|||
}
|
||||
|
||||
if (!count) {
|
||||
up(&cam->fileop_sem);
|
||||
mutex_unlock(&cam->fileop_mutex);
|
||||
return 0;
|
||||
}
|
||||
|
||||
if (list_empty(&cam->outqueue)) {
|
||||
if (filp->f_flags & O_NONBLOCK) {
|
||||
up(&cam->fileop_sem);
|
||||
mutex_unlock(&cam->fileop_mutex);
|
||||
return -EAGAIN;
|
||||
}
|
||||
err = wait_event_interruptible
|
||||
timeout = wait_event_interruptible_timeout
|
||||
( cam->wait_frame,
|
||||
(!list_empty(&cam->outqueue)) ||
|
||||
(cam->state & DEV_DISCONNECTED) ||
|
||||
(cam->state & DEV_MISCONFIGURED) );
|
||||
if (err) {
|
||||
up(&cam->fileop_sem);
|
||||
return err;
|
||||
(cam->state & DEV_MISCONFIGURED),
|
||||
cam->module_param.frame_timeout *
|
||||
1000 * msecs_to_jiffies(1) );
|
||||
if (timeout < 0) {
|
||||
mutex_unlock(&cam->fileop_mutex);
|
||||
return timeout;
|
||||
}
|
||||
if (cam->state & DEV_DISCONNECTED) {
|
||||
up(&cam->fileop_sem);
|
||||
mutex_unlock(&cam->fileop_mutex);
|
||||
return -ENODEV;
|
||||
}
|
||||
if (cam->state & DEV_MISCONFIGURED) {
|
||||
up(&cam->fileop_sem);
|
||||
if (!timeout || (cam->state & DEV_MISCONFIGURED)) {
|
||||
mutex_unlock(&cam->fileop_mutex);
|
||||
return -EIO;
|
||||
}
|
||||
}
|
||||
|
|
@ -1375,7 +1379,7 @@ exit:
|
|||
PDBGG("Frame #%lu, bytes read: %zu",
|
||||
(unsigned long)f->buf.index, count);
|
||||
|
||||
up(&cam->fileop_sem);
|
||||
mutex_unlock(&cam->fileop_mutex);
|
||||
|
||||
return err ? err : count;
|
||||
}
|
||||
|
|
@ -1388,7 +1392,7 @@ static unsigned int et61x251_poll(struct file *filp, poll_table *wait)
|
|||
unsigned long lock_flags;
|
||||
unsigned int mask = 0;
|
||||
|
||||
if (down_interruptible(&cam->fileop_sem))
|
||||
if (mutex_lock_interruptible(&cam->fileop_mutex))
|
||||
return POLLERR;
|
||||
|
||||
if (cam->state & DEV_DISCONNECTED) {
|
||||
|
|
@ -1426,12 +1430,12 @@ static unsigned int et61x251_poll(struct file *filp, poll_table *wait)
|
|||
if (!list_empty(&cam->outqueue))
|
||||
mask |= POLLIN | POLLRDNORM;
|
||||
|
||||
up(&cam->fileop_sem);
|
||||
mutex_unlock(&cam->fileop_mutex);
|
||||
|
||||
return mask;
|
||||
|
||||
error:
|
||||
up(&cam->fileop_sem);
|
||||
mutex_unlock(&cam->fileop_mutex);
|
||||
return POLLERR;
|
||||
}
|
||||
|
||||
|
|
@ -1465,25 +1469,25 @@ static int et61x251_mmap(struct file* filp, struct vm_area_struct *vma)
|
|||
void *pos;
|
||||
u32 i;
|
||||
|
||||
if (down_interruptible(&cam->fileop_sem))
|
||||
if (mutex_lock_interruptible(&cam->fileop_mutex))
|
||||
return -ERESTARTSYS;
|
||||
|
||||
if (cam->state & DEV_DISCONNECTED) {
|
||||
DBG(1, "Device not present");
|
||||
up(&cam->fileop_sem);
|
||||
mutex_unlock(&cam->fileop_mutex);
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
if (cam->state & DEV_MISCONFIGURED) {
|
||||
DBG(1, "The camera is misconfigured. Close and open it "
|
||||
"again.");
|
||||
up(&cam->fileop_sem);
|
||||
mutex_unlock(&cam->fileop_mutex);
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
if (cam->io != IO_MMAP || !(vma->vm_flags & VM_WRITE) ||
|
||||
size != PAGE_ALIGN(cam->frame[0].buf.length)) {
|
||||
up(&cam->fileop_sem);
|
||||
mutex_unlock(&cam->fileop_mutex);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
|
|
@ -1492,7 +1496,7 @@ static int et61x251_mmap(struct file* filp, struct vm_area_struct *vma)
|
|||
break;
|
||||
}
|
||||
if (i == cam->nbuffers) {
|
||||
up(&cam->fileop_sem);
|
||||
mutex_unlock(&cam->fileop_mutex);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
|
|
@ -1502,7 +1506,7 @@ static int et61x251_mmap(struct file* filp, struct vm_area_struct *vma)
|
|||
pos = cam->frame[i].bufmem;
|
||||
while (size > 0) { /* size is page-aligned */
|
||||
if (vm_insert_page(vma, start, vmalloc_to_page(pos))) {
|
||||
up(&cam->fileop_sem);
|
||||
mutex_unlock(&cam->fileop_mutex);
|
||||
return -EAGAIN;
|
||||
}
|
||||
start += PAGE_SIZE;
|
||||
|
|
@ -1515,7 +1519,7 @@ static int et61x251_mmap(struct file* filp, struct vm_area_struct *vma)
|
|||
|
||||
et61x251_vm_open(vma);
|
||||
|
||||
up(&cam->fileop_sem);
|
||||
mutex_unlock(&cam->fileop_mutex);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
|
@ -1557,6 +1561,7 @@ et61x251_vidioc_enuminput(struct et61x251_device* cam, void __user * arg)
|
|||
|
||||
memset(&i, 0, sizeof(i));
|
||||
strcpy(i.name, "Camera");
|
||||
i.type = V4L2_INPUT_TYPE_CAMERA;
|
||||
|
||||
if (copy_to_user(arg, &i, sizeof(i)))
|
||||
return -EFAULT;
|
||||
|
|
@ -1566,7 +1571,19 @@ et61x251_vidioc_enuminput(struct et61x251_device* cam, void __user * arg)
|
|||
|
||||
|
||||
static int
|
||||
et61x251_vidioc_gs_input(struct et61x251_device* cam, void __user * arg)
|
||||
et61x251_vidioc_g_input(struct et61x251_device* cam, void __user * arg)
|
||||
{
|
||||
int index = 0;
|
||||
|
||||
if (copy_to_user(arg, &index, sizeof(index)))
|
||||
return -EFAULT;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
static int
|
||||
et61x251_vidioc_s_input(struct et61x251_device* cam, void __user * arg)
|
||||
{
|
||||
int index;
|
||||
|
||||
|
|
@ -1583,7 +1600,7 @@ et61x251_vidioc_gs_input(struct et61x251_device* cam, void __user * arg)
|
|||
static int
|
||||
et61x251_vidioc_query_ctrl(struct et61x251_device* cam, void __user * arg)
|
||||
{
|
||||
struct et61x251_sensor* s = cam->sensor;
|
||||
struct et61x251_sensor* s = &cam->sensor;
|
||||
struct v4l2_queryctrl qc;
|
||||
u8 i;
|
||||
|
||||
|
|
@ -1605,7 +1622,7 @@ et61x251_vidioc_query_ctrl(struct et61x251_device* cam, void __user * arg)
|
|||
static int
|
||||
et61x251_vidioc_g_ctrl(struct et61x251_device* cam, void __user * arg)
|
||||
{
|
||||
struct et61x251_sensor* s = cam->sensor;
|
||||
struct et61x251_sensor* s = &cam->sensor;
|
||||
struct v4l2_control ctrl;
|
||||
int err = 0;
|
||||
u8 i;
|
||||
|
|
@ -1637,7 +1654,7 @@ exit:
|
|||
static int
|
||||
et61x251_vidioc_s_ctrl(struct et61x251_device* cam, void __user * arg)
|
||||
{
|
||||
struct et61x251_sensor* s = cam->sensor;
|
||||
struct et61x251_sensor* s = &cam->sensor;
|
||||
struct v4l2_control ctrl;
|
||||
u8 i;
|
||||
int err = 0;
|
||||
|
|
@ -1650,6 +1667,8 @@ et61x251_vidioc_s_ctrl(struct et61x251_device* cam, void __user * arg)
|
|||
|
||||
for (i = 0; i < ARRAY_SIZE(s->qctrl); i++)
|
||||
if (ctrl.id == s->qctrl[i].id) {
|
||||
if (s->qctrl[i].flags & V4L2_CTRL_FLAG_DISABLED)
|
||||
return -EINVAL;
|
||||
if (ctrl.value < s->qctrl[i].minimum ||
|
||||
ctrl.value > s->qctrl[i].maximum)
|
||||
return -ERANGE;
|
||||
|
|
@ -1669,7 +1688,7 @@ et61x251_vidioc_s_ctrl(struct et61x251_device* cam, void __user * arg)
|
|||
static int
|
||||
et61x251_vidioc_cropcap(struct et61x251_device* cam, void __user * arg)
|
||||
{
|
||||
struct v4l2_cropcap* cc = &(cam->sensor->cropcap);
|
||||
struct v4l2_cropcap* cc = &(cam->sensor.cropcap);
|
||||
|
||||
cc->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
||||
cc->pixelaspect.numerator = 1;
|
||||
|
|
@ -1685,7 +1704,7 @@ et61x251_vidioc_cropcap(struct et61x251_device* cam, void __user * arg)
|
|||
static int
|
||||
et61x251_vidioc_g_crop(struct et61x251_device* cam, void __user * arg)
|
||||
{
|
||||
struct et61x251_sensor* s = cam->sensor;
|
||||
struct et61x251_sensor* s = &cam->sensor;
|
||||
struct v4l2_crop crop = {
|
||||
.type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
|
||||
};
|
||||
|
|
@ -1702,7 +1721,7 @@ et61x251_vidioc_g_crop(struct et61x251_device* cam, void __user * arg)
|
|||
static int
|
||||
et61x251_vidioc_s_crop(struct et61x251_device* cam, void __user * arg)
|
||||
{
|
||||
struct et61x251_sensor* s = cam->sensor;
|
||||
struct et61x251_sensor* s = &cam->sensor;
|
||||
struct v4l2_crop crop;
|
||||
struct v4l2_rect* rect;
|
||||
struct v4l2_rect* bounds = &(s->cropcap.bounds);
|
||||
|
|
@ -1843,7 +1862,7 @@ static int
|
|||
et61x251_vidioc_g_fmt(struct et61x251_device* cam, void __user * arg)
|
||||
{
|
||||
struct v4l2_format format;
|
||||
struct v4l2_pix_format* pfmt = &(cam->sensor->pix_format);
|
||||
struct v4l2_pix_format* pfmt = &(cam->sensor.pix_format);
|
||||
|
||||
if (copy_from_user(&format, arg, sizeof(format)))
|
||||
return -EFAULT;
|
||||
|
|
@ -1868,7 +1887,7 @@ static int
|
|||
et61x251_vidioc_try_s_fmt(struct et61x251_device* cam, unsigned int cmd,
|
||||
void __user * arg)
|
||||
{
|
||||
struct et61x251_sensor* s = cam->sensor;
|
||||
struct et61x251_sensor* s = &cam->sensor;
|
||||
struct v4l2_format format;
|
||||
struct v4l2_pix_format* pix;
|
||||
struct v4l2_pix_format* pfmt = &(s->pix_format);
|
||||
|
|
@ -2155,7 +2174,7 @@ et61x251_vidioc_dqbuf(struct et61x251_device* cam, struct file* filp,
|
|||
struct v4l2_buffer b;
|
||||
struct et61x251_frame_t *f;
|
||||
unsigned long lock_flags;
|
||||
int err = 0;
|
||||
long timeout;
|
||||
|
||||
if (copy_from_user(&b, arg, sizeof(b)))
|
||||
return -EFAULT;
|
||||
|
|
@ -2168,16 +2187,18 @@ et61x251_vidioc_dqbuf(struct et61x251_device* cam, struct file* filp,
|
|||
return -EINVAL;
|
||||
if (filp->f_flags & O_NONBLOCK)
|
||||
return -EAGAIN;
|
||||
err = wait_event_interruptible
|
||||
timeout = wait_event_interruptible_timeout
|
||||
( cam->wait_frame,
|
||||
(!list_empty(&cam->outqueue)) ||
|
||||
(cam->state & DEV_DISCONNECTED) ||
|
||||
(cam->state & DEV_MISCONFIGURED) );
|
||||
if (err)
|
||||
return err;
|
||||
(cam->state & DEV_MISCONFIGURED),
|
||||
cam->module_param.frame_timeout *
|
||||
1000 * msecs_to_jiffies(1) );
|
||||
if (timeout < 0)
|
||||
return timeout;
|
||||
if (cam->state & DEV_DISCONNECTED)
|
||||
return -ENODEV;
|
||||
if (cam->state & DEV_MISCONFIGURED)
|
||||
if (!timeout || (cam->state & DEV_MISCONFIGURED))
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
|
|
@ -2309,8 +2330,10 @@ static int et61x251_ioctl_v4l2(struct inode* inode, struct file* filp,
|
|||
return et61x251_vidioc_enuminput(cam, arg);
|
||||
|
||||
case VIDIOC_G_INPUT:
|
||||
return et61x251_vidioc_g_input(cam, arg);
|
||||
|
||||
case VIDIOC_S_INPUT:
|
||||
return et61x251_vidioc_gs_input(cam, arg);
|
||||
return et61x251_vidioc_s_input(cam, arg);
|
||||
|
||||
case VIDIOC_QUERYCTRL:
|
||||
return et61x251_vidioc_query_ctrl(cam, arg);
|
||||
|
|
@ -2393,19 +2416,19 @@ static int et61x251_ioctl(struct inode* inode, struct file* filp,
|
|||
struct et61x251_device* cam = video_get_drvdata(video_devdata(filp));
|
||||
int err = 0;
|
||||
|
||||
if (down_interruptible(&cam->fileop_sem))
|
||||
if (mutex_lock_interruptible(&cam->fileop_mutex))
|
||||
return -ERESTARTSYS;
|
||||
|
||||
if (cam->state & DEV_DISCONNECTED) {
|
||||
DBG(1, "Device not present");
|
||||
up(&cam->fileop_sem);
|
||||
mutex_unlock(&cam->fileop_mutex);
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
if (cam->state & DEV_MISCONFIGURED) {
|
||||
DBG(1, "The camera is misconfigured. Close and open it "
|
||||
"again.");
|
||||
up(&cam->fileop_sem);
|
||||
mutex_unlock(&cam->fileop_mutex);
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
|
|
@ -2413,7 +2436,7 @@ static int et61x251_ioctl(struct inode* inode, struct file* filp,
|
|||
|
||||
err = et61x251_ioctl_v4l2(inode, filp, cmd, (void __user *)arg);
|
||||
|
||||
up(&cam->fileop_sem);
|
||||
mutex_unlock(&cam->fileop_mutex);
|
||||
|
||||
return err;
|
||||
}
|
||||
|
|
@ -2459,7 +2482,7 @@ et61x251_usb_probe(struct usb_interface* intf, const struct usb_device_id* id)
|
|||
goto fail;
|
||||
}
|
||||
|
||||
init_MUTEX(&cam->dev_sem);
|
||||
mutex_init(&cam->dev_mutex);
|
||||
|
||||
DBG(2, "ET61X[12]51 PC Camera Controller detected "
|
||||
"(vid/pid 0x%04X/0x%04X)",id->idVendor, id->idProduct);
|
||||
|
|
@ -2470,8 +2493,8 @@ et61x251_usb_probe(struct usb_interface* intf, const struct usb_device_id* id)
|
|||
break;
|
||||
}
|
||||
|
||||
if (!err && cam->sensor)
|
||||
DBG(2, "%s image sensor detected", cam->sensor->name);
|
||||
if (!err)
|
||||
DBG(2, "%s image sensor detected", cam->sensor.name);
|
||||
else {
|
||||
DBG(1, "No supported image sensor detected");
|
||||
err = -ENODEV;
|
||||
|
|
@ -2492,7 +2515,7 @@ et61x251_usb_probe(struct usb_interface* intf, const struct usb_device_id* id)
|
|||
cam->v4ldev->release = video_device_release;
|
||||
video_set_drvdata(cam->v4ldev, cam);
|
||||
|
||||
down(&cam->dev_sem);
|
||||
mutex_lock(&cam->dev_mutex);
|
||||
|
||||
err = video_register_device(cam->v4ldev, VFL_TYPE_GRABBER,
|
||||
video_nr[dev_nr]);
|
||||
|
|
@ -2502,13 +2525,14 @@ et61x251_usb_probe(struct usb_interface* intf, const struct usb_device_id* id)
|
|||
DBG(1, "Free /dev/videoX node not found");
|
||||
video_nr[dev_nr] = -1;
|
||||
dev_nr = (dev_nr < ET61X251_MAX_DEVICES-1) ? dev_nr+1 : 0;
|
||||
up(&cam->dev_sem);
|
||||
mutex_unlock(&cam->dev_mutex);
|
||||
goto fail;
|
||||
}
|
||||
|
||||
DBG(2, "V4L2 device registered as /dev/video%d", cam->v4ldev->minor);
|
||||
|
||||
cam->module_param.force_munmap = force_munmap[dev_nr];
|
||||
cam->module_param.frame_timeout = frame_timeout[dev_nr];
|
||||
|
||||
dev_nr = (dev_nr < ET61X251_MAX_DEVICES-1) ? dev_nr+1 : 0;
|
||||
|
||||
|
|
@ -2519,7 +2543,7 @@ et61x251_usb_probe(struct usb_interface* intf, const struct usb_device_id* id)
|
|||
|
||||
usb_set_intfdata(intf, cam);
|
||||
|
||||
up(&cam->dev_sem);
|
||||
mutex_unlock(&cam->dev_mutex);
|
||||
|
||||
return 0;
|
||||
|
||||
|
|
@ -2543,7 +2567,7 @@ static void et61x251_usb_disconnect(struct usb_interface* intf)
|
|||
|
||||
down_write(&et61x251_disconnect);
|
||||
|
||||
down(&cam->dev_sem);
|
||||
mutex_lock(&cam->dev_mutex);
|
||||
|
||||
DBG(2, "Disconnecting %s...", cam->v4ldev->name);
|
||||
|
||||
|
|
@ -2557,13 +2581,14 @@ static void et61x251_usb_disconnect(struct usb_interface* intf)
|
|||
et61x251_stop_transfer(cam);
|
||||
cam->state |= DEV_DISCONNECTED;
|
||||
wake_up_interruptible(&cam->wait_frame);
|
||||
wake_up_interruptible(&cam->wait_stream);
|
||||
wake_up(&cam->wait_stream);
|
||||
usb_get_dev(cam->usbdev);
|
||||
} else {
|
||||
cam->state |= DEV_DISCONNECTED;
|
||||
et61x251_release_resources(cam);
|
||||
}
|
||||
|
||||
up(&cam->dev_sem);
|
||||
mutex_unlock(&cam->dev_mutex);
|
||||
|
||||
if (!cam->users)
|
||||
kfree(cam);
|
||||
|
|
|
|||
|
|
@ -42,6 +42,9 @@ static int (*et61x251_sensor_table[])(struct et61x251_device*) = { \
|
|||
NULL, \
|
||||
};
|
||||
|
||||
extern struct et61x251_device*
|
||||
et61x251_match_id(struct et61x251_device* cam, const struct usb_device_id *id);
|
||||
|
||||
extern void
|
||||
et61x251_attach_sensor(struct et61x251_device* cam,
|
||||
struct et61x251_sensor* sensor);
|
||||
|
|
@ -105,8 +108,6 @@ struct et61x251_sensor {
|
|||
int (*set_pix_format)(struct et61x251_device* cam,
|
||||
const struct v4l2_pix_format* pix);
|
||||
|
||||
const struct usb_device* usbdev;
|
||||
|
||||
/* Private */
|
||||
struct v4l2_queryctrl _qctrl[ET61X251_MAX_CTRLS];
|
||||
struct v4l2_rect _rect;
|
||||
|
|
|
|||
|
|
@ -126,12 +126,16 @@ static struct et61x251_sensor tas5130d1b = {
|
|||
|
||||
int et61x251_probe_tas5130d1b(struct et61x251_device* cam)
|
||||
{
|
||||
/* This sensor has no identifiers, so let's attach it anyway */
|
||||
et61x251_attach_sensor(cam, &tas5130d1b);
|
||||
const struct usb_device_id tas5130d1b_id_table[] = {
|
||||
{ USB_DEVICE(0x102c, 0x6251), },
|
||||
{ }
|
||||
};
|
||||
|
||||
/* Sensor detection is based on USB pid/vid */
|
||||
if (le16_to_cpu(tas5130d1b.usbdev->descriptor.idProduct) != 0x6251)
|
||||
if (!et61x251_match_id(cam, tas5130d1b_id_table))
|
||||
return -ENODEV;
|
||||
|
||||
et61x251_attach_sensor(cam, &tas5130d1b);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
|
|
|||
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